Flush-tank.



Patented Sept. 25, 1917.

N. PRICE.

FLUSH TANK.

APPLICATION FILED IAN-24. 1911.

d fi 3 INVEMTOR \mvmu \Wwa 4 TTOR/VEYS WITNESSES NORMAN PRICE, or BROOKLYN, NEW YORK.

' FLUSH-TANK.

Specification 'of Letters Patent.

Patented Sept. '25, 1917.

Application filed January 24, 1917. Serial No. 144,149.

To all whomz'tmay concern a Be itknown that I, NORMAN 'PRICE, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Flush-Tank, of which the following is a full, clear, and exact description.

This invention relates to baths and closets and has particular reference to flush tanks for toilet bowls or other analogous purposes.

Among the objects of this invention is to provide a flush tank, that will be practically non-leakable and provided with a valveless supply pipe connection.

Another object of the invention is to improve that typeof flush tanks which have the charge of water maintained under pres sure equal to the pressure of the supply leading to the building or from'the building to the flush tank, whereby there is insured a prompt and rapid discharge of water from 'the tank for flushing purposes.

' A further object of the invention is the provision of means cooperating with the valve mechanism to insure a proper refill of the toilet bowl. r

WVith the foregoingv and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the in- 117611131011 is not restricted to the exact details of, construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like characters designate the same parts in the several views, and in which Figure 1 is a vertical longitudinal section on the line 11 of Fig.2

Fig. 2 is a horizontal sectional view on the line 2-2 of Fig. 1; and

Fig- 3 is a vertical transverse section on the line 33 of Fig. 1.

Referring now more particularly to the drawings, I show a flush tank 10 of any suitable size, design or construction,buthaving sufficient strength to withstand the internal pressure to which it is adapted to be subjected. This tank isprovided with a. lid.11

above and below the valve.

7 and an internal horizontal partition 12 formed preferably as an integral part of thetank structure and providedwith a sealing plug 13 at its center; 7 .The lid 11 provides a finish for the tank andfprevents ordinary meddling or tampering with the sealing device below the stem.

14 indicates the main delivery or outlet spud forthe tank, the same being fixed permanently at about the center ofthe bottom of the tank. This member 14 is locked in a water and airtight position with respect to the bottom of the tank by means of wash ers 15 and lock nuts 16 secured thereon in any common, or approved manner.

An inlet pipe 1 leads Into the interior of the tank at any desired place, but for convenience is indicated as leading through the bottom and is locked in a Watertight man- 'ner thereto, but is provided with no valve" for controlling the inlet of Water.

'A main valve 18 controlling the flush or delivery from the tank through the spud 14 is seated normally upon anannular valve seat 19 constituting the base of a frame or spider secured as by screw threads upon the upper endof the spud 14. Said spider includes aqseriesof upwardly projecting arms 20 spaced from one another, permitting the free flow, of water betweenthem and out through the annular base orvalve seat when the valve 18 is lifted from its normal closed position. The valve 18 is firmly and tightly secured to a stem 21 which extends both The lower end of the stem 21 is slidably fitted in aguide member 22 fitted within'the spud below the valve seat. This guide member is provided with large openings through which the water is adapted to flush freely. The upper end of the stem 21 is guided loosely through a hole 23v formed in the bottom of a cup 24 connected to and supported by the arms 20 of the frame above described. This cup and the other parts referred'to associated therewith are of a size suitable for introduction into the interior of the tank through the hole normally closed by the plug'13. Vith the parts designed and arranged as thus far described, I may briefly state the manner of operation as follows: The tank naturally is filled with air at the time of assemblage or after each flushing operation. When the tank isv emptied of water, the valve 18 is closed, being so held by gravity acting-upon it and its stem and also by the weight ofa float ball 25 secured to the upper end of said stem and occupying" a position within the cup 24. The inlet pipe 17 being. open to the source of water supply, water firm freely into the tank until the internal pressure within the tank equals the pressure of' the water supply. By this time, the body I of airswithin the tank will be compressed intoa cushion: atthe top of -the tank and having a' pressureequa'l to that of the water.

The buoyancy of the float25 -is' so proportioned that it will not'llift the valve against the internal "force tending to hold the valve closed' until some outside influence initiates the opening action, but when the'valve is "onceunseated the float" will lift the valve to itsope'nposition by its buoyancy. When the valve-is unseatedand lifted' by the float, the bulk of the water invthetank will be delivered promptly therefromr through the valve seat 1 9 2l11'ld-'SPuCl-14: by gravity assisted-bythecushion of compressed air at the top. The -'valve, however, will be held open" a little time so as to insure a proper refill of I the toilet bow-1f This temporary holding of the valve in its elevated position isf e'ffected'by 'the comparatively smallb'ody of water'h'elduin the cup 24. Thesize of the hole 23, however, in the bottom of the cup-is so designedthat the water will flow from'the cup following the discharge of'the bulk of waterfrom the tank, andlthis water from: the cup together with the water: ad-

between the delivery of the fiushingiw'ater and the closing of the valve, will provide the-refill for the bowl.

-' Any'suitable' means may be mitted through the inlet during the interval 'providedto unseat the'valve 18 to discharge the" contents ofithe; tank. For this purpose providea rock shaft- 26 journaled' adjacentto one end in a stufling box 27 in one-side'of the spud 14- below the tank and at its'other end'in a bracket 28, shown 'incidentallyas carried'bythe" inlet pipe 17 The inner end I oflth'eirockshaftor the-end within' thespu'd carriesa cam29 cooperating with'the lower 30 c-arried thereby and the other? end, of the rock shaft: carries a lever 3L which when forced' downw ardlyby: the operatornvill lift the cam and unseat'the valve. The roller 30 is indicated as beingn'earer to the; guide memberv22 than the valve is to the hole23, and .henc'e'this roller may typify any suitable means-to limit the upwardmovement of the valve so as to 'preventthevalvefrom obstructingthe flow of water from the cup through the hole 28. The lever may be maintained in its normal position by any suitable means, as a counterbalance so as not to interferewith the proper automatic seating ofthe valveylS in themanner already set forth. The valvel8, as above premised,

is guided for direct seating upon the seat a iupper end' thereof,-a valve normally seated on said seat and guardmg the delivery through the spud, saidvalve having: a rigid stem exte'ndmg. above the valve a float se cured upon the upper end of said stem, a

cup having a hole in its bottomthrough which said stem: isguided, said cup being adapted to hold a predetermined quantity of water deliverable'through said guide hole to provide forthe refill of the'bowl; supportingmeans for the cup eXtending' from the valve seat, means to deliver water into the: tank and cup, and means to unseat' the of the valve 18, the device is PI'ZLC",

valve to initiate the flow of water from' the tank, I

2 The combination with a flush tank and inlet and outlet pipestherefor, of valve mechanism: controlling the deliveryof' water through the outlet pipe, said valve mechanism' comprising a spider having a: base securedPupon the upper end of the outlet pipe and constituting, valve seat-,- said spider also including a plurality of upwardy projecting'arms, a cup supportedby said arms and having a hole in' its bottom, a valve seated normallyonsaidseat and havingra rigid stem projectingupwardly through said hole into the cup, a float secured to the upper end of the stem within the cup and ser'ving when the valve is unseated to lift it free'from the seat allowing the bulk of the water" in the tank to dischargetln'ough the outlet pipe, the cup and the hole in its bottom bein glso designed to* 7 provide for the water'fron'i the cup'to-follow' the bulk of the'wa'ter from thetan'k,

.- end of'the'st'em 21' or an anti-Lfriction roller and means acting through the outlet pipe to unseat the valve. v

3. The combination'of a fiush tank includ ling an airtight top'liaving a sealing? plug,

a valyeless inlet pipe leading into'the tank, a delivery spud" fitted into the bottom of the tank in alinement with said" plug, a guide member fittedcentrally inthe spud; avalve seat fitted uponthe upper end of thespud and having upwardlyprojecting arms*,-the valve seat and the arms constituting a spider adapted to' be introduced into the tank through the'top, a cup supporte'd upon 'thearms and having a guide hole in its bottom, valve comprising a rock shaft journaled in a normally closed valve cooperating with the side of the spud and a cam secured to said seat and having a rigid stem extending the inner end of the rock shaft and adapted 10 both above and below the valve and guided to cooperate With the lower end of the valve 5 in said guide member and cup hole, a float stem.

connected to the upper end of the valve stem within the cup, and means to unseat the NORMAN PRICE.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0." 

